The thing with centrifugal pumps is, they are made to be on all the time. Starting and stoppong them can cause lots of problems, including sometimes getting jammed which can burn out the motor if you don't catch it in time (it would have to be jammed for a little while to burn out).
Most non el-cheapo pumps should last a long time as long as you don't turn them off too much. A fish tank friend of my specifically warned me against Rio pumps, so there's one to watch out for.
|